Leaf-miner:
Before overwintering larvae make a small, full depth blotch (Robbins, 1991a). After hibernation, they live freely under a silk.
Larvae mine in late autumn (Agassiz, 1996a). Not rare, in Belgium (De Prins, 1998a) (Bladmineerders van Europa).

Larva: The larvae of moths have a head capsule and chewing mouthparts with opposable mandibles (see video of a gracillarid larva feeding), six thoracic legs and abdominal legs (see examples).